The Effect of Organic and Potassium Fertilization on the Chemical Content and Quality of Fruits in Carrots
Omer AL-Farouq Sh. AL-Dulaimy, Maath M. AL-Abdaly
A field experiment was carried out at the research station affiliated with the College of Agriculture/Al-Bu’itha Village/Anbar Governorate, to study the effect of organic and potassium fertilization on the chemical content and quality of fruits in carrots. The study was carried out by distributing factorial experiments in a completely randomized block design (RCBD) with three replicates. The first factor included organic poultry fertilizer in four concentrations (0-, 10-, 15-, and 20-tons ha-1), and the second factor is potassium fertilizer, also at four concentrations (0, 150, 200 and 250 kg K2O ha-1). The results of the statistical analysis showed that organic fertilization at the level: 20 tons ha-1 of poultry waste gave a significant increase in nitrogen index, total sugars, total yield, and marketable yield, where their value was: 3.05%, 8.43%, 125.07 tons ha-1 and 110.00 tons ha-1 respectively, compared to with the comparison treatment given 1.54%, 5, 525.52%-, 79.25 tons ha-1 and 99.97 tons ha-1 for the same qualities. Potassium fertilization had a significant effect as the treatment was superiorK3 which means level 250 kg K2O ha-1 in nitrogen index, total sugars, total yield and marketable yield its value was: 2.51%, 7.01%, 112.25 tons ha-1 and117.90 tons ha-1 Respectively. The interaction between the two study factors gave a significant effect, as the treatment was superior C3K3, which means: 20 tons ha-1 of poultry waste + 250 kg K2O ha-1 it gave the best results nitrogen index, total sugars, total yield and marketable yield and I reached: 3.50%, 8.73%, 126.85 tons ha-1 and 124.31 tons ha-1 respectively.
Keywords: Daucus carotaL, Organic fertilizers, Organic poultry waste, Qualitative characteristics
